/**
* Check whether this storage is permanently or temporarily
* unavailable
*
* @throws \OCP\Files\StorageNotAvailableException
* @throws \OCP\Files\StorageInvalidException
*/
public function checkStorageAvailability()
{
// see if we can find out why the share is unavailable
try {
$this->getShareInfo();
} catch (NotFoundException $e) {
// a 404 can either mean that the share no longer exists or there is no ownCloud on the remote
if ($this->testRemote()) {
// valid ownCloud instance means that the public share no longer exists
// since this is permanent (re-sharing the file will create a new token)
// we remove the invalid storage
$this->manager->removeShare($this->mountPoint);
$this->manager->getMountManager()->removeMount($this->mountPoint);
throw new StorageInvalidException();
} else {
// ownCloud instance is gone, likely to be a temporary server configuration error
throw new StorageNotAvailableException();
}
} catch (ForbiddenException $e) {
// auth error, remove share for now (provide a dialog in the future)
$this->manager->removeShare($this->mountPoint);
$this->manager->getMountManager()->removeMount($this->mountPoint);
throw new StorageInvalidException();
} catch (\GuzzleHttp\Exception\ConnectException $e) {
throw new StorageNotAvailableException();
} catch (\GuzzleHttp\Exception\RequestException $e) {
throw new StorageNotAvailableException();
} catch (\Exception $e) {
throw $e;
}
}
/**
* check if a file or folder has been updated since $time
*
* @param string $path
* @param int $time
* @throws \OCP\Files\StorageNotAvailableException
* @throws \OCP\Files\StorageInvalidException
* @return bool
*/
public function hasUpdated($path, $time)
{
// since for owncloud webdav servers we can rely on etag propagation we only need to check the root of the storage
// because of that we only do one check for the entire storage per request
if ($this->updateChecked) {
return false;
}
$this->updateChecked = true;
try {
return parent::hasUpdated('', $time);
} catch (StorageNotAvailableException $e) {
// see if we can find out why the share is unavailable\
try {
$this->getShareInfo();
} catch (NotFoundException $shareException) {
// a 404 can either mean that the share no longer exists or there is no ownCloud on the remote
if ($this->testRemote()) {
// valid ownCloud instance means that the public share no longer exists
// since this is permanent (re-sharing the file will create a new token)
// we remove the invalid storage
$this->manager->removeShare($this->mountPoint);
$this->manager->getMountManager()->removeMount($this->mountPoint);
throw new StorageInvalidException();
} else {
// ownCloud instance is gone, likely to be a temporary server configuration error
throw $e;
}
} catch (\Exception $shareException) {
// todo, maybe handle 403 better and ask the user for a new password
throw $e;
}
throw $e;
}
}
